24 LÖNNBERG, FISHES FROM SPITZBERGEN AND KING CHARLES LAND. 
According to CoLrrEtt one of the differences between the 
eastern L. esmarkii and the western L. vahlii is to be found 
in the different size of the head. In young females of the 
latter it is contained 5,4 times in the total length, but in 
the former even in youngs only 4,6, he says, 'The specimen 
on hand helps to fill this gap as its head is contained nearly 
5 times, or exactly 4,9... in the total length. The charac- 
teristic that L. vahlii shall have only one, but L. esmarkii 
two lateral lines seems to be of very little importance when 
CoLrLETT himself has observed traces of the mediolateral line 
(which should normally be wanting!) even in a type-specimen 
of L. vahlii and, on the other hand, the mediolateral line in 
L. esmarkii often is conspiecuous, especially in adult specimens. 
Another character derived from the length of the rows of 
teeth on the palatine bones has already been discussed by 
SMITT (1. c. p. 614—15). The colour is also variable. Thus; 
for instance, the colour of the specimen mentioned above is 
rather similar to that of an old male figured by CoLLETT 
(1. c. fig. 22 pl. TID), although the latter is nearly four times 
as large. That is, the light transverse bars begin to be trans- 
formed into chains of rings, at least the three or four ante- 
rior ones. The scales are developed on the whole body to 
the light band on the neck in the specimen on hand, although 
its total length only is 192 mm. "There are as yet only 6 
palatine teeth on each side, situated with wide interspaces. 
The peritoneum is brownish black. NSMItT says (1 ec. p. 616) 
that the appendices pylorice are very rudimentary in this 
species. In the specimen I have dissected there is not the 
slightest trace of such organs to be detected as CorrEert also. 
indicates to be the case in L. esmarki. 'Ihe ventricle con- 
tained small erustaceans (gammarids), sete of annelids and 
fragments of ophiurids (?). 
The specimen was immature with a single genital organ 
of diminutive size. 
The number of the pectoral rays is 22. 
16. Lycodes frigidus Correrr.. 
1 specimen lat. 77” 52' N., I'3' E.; depth: 2,7/50 m., Biloculina clay: tempera- 
ture: — 1,4? CO. 9/7 98. 
This specimen has the uniform brown colour of L. fri- 
gidus Corrert. The body is scaled on the sides and also on 
